Means and method for dyeing keratin fibres
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United States of America Patent
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Nov 13, 2007
Grant Date -
Apr 6, 2006
app pub date -
Jan 30, 2004
filing date -
Mar 5, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The agent for coloring keratin fibers is based on oxidative dye precursors and contains: (a) at least one hydrazone derivative of formula (I) or a physiologically compatible salt thereof, (b) at least one coupler or a physiologically compatible salt thereof, and (c) a persulfate salt as oxidant. A multicomponent kit for coloring keratin fibers and a method of coloring keratin fibers using the agent are also provided ##STR00001##
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